JP2002507047A - Prism battery housing - Google Patents

Prism battery housing

Info

Publication number
JP2002507047A
JP2002507047A JP2000536110A JP2000536110A JP2002507047A JP 2002507047 A JP2002507047 A JP 2002507047A JP 2000536110 A JP2000536110 A JP 2000536110A JP 2000536110 A JP2000536110 A JP 2000536110A JP 2002507047 A JP2002507047 A JP 2002507047A
Authority
JP
Japan
Prior art keywords
cover
battery
prism
sides
seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000536110A
Other languages
Japanese (ja)
Inventor
デイビッド、シー．バトソン
ジョン、ディー．シレスキー
リチャード、エム．マンク
Original Assignee
デュラセル インコーポレイテッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by デュラセル インコーポレイテッド filed Critical デュラセル インコーポレイテッド
Publication of JP2002507047A publication Critical patent/JP2002507047A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H01M50/627—Filling ports
    • H01M50/636—Closing or sealing filling ports, e.g. using lids
    • H01M50/645—Plugs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The invention features a prismatic battery with an electrically conductive housing comprising an elongated, prismatic can with an open end, and a housing cover pressed into the open end of the can and welded in place. The novel cover has an outer flange about its periphery, extending generally in the direction of extension of the sides of the can, which elastically deflects as the cover is pressed into the can to provide good contact for welding. The cover has two raised bumps forming internal pockets that are part of the internal volume of the cell. The bumps are also arranged to prevent rotation of the seal/vent assembly. One embodiment includes a plugged fill hole in one of the bumps. Corresponding methods of manufacture are also disclosed.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】 本発明は、プリズムハウジングを備えるバッテリとその構造に関する。The present invention relates to a battery including a prism housing and a structure thereof.

【０００２】 プリズム電池は、断面が円形を成す形状ではなく角柱（プリズム）形になって
いる。このようなプリズム電池の例としては、F６ニッケル・水素（NiMH）蓄電 池があり、この電池は最近、携帯電話のようなポータブル電気機器に使用されて
おり、断面は長方形である。このようなプリズム電池のハウジングは普通、深絞
りされた（もしくは長手方向に継目を有した）カンを含み、このカンは、１個も
しくはそれより多くの電気接点を備えた硬質の平板カバー組立体で蓋をされてい
る。このカバーは普通、カンのプリズム開口端部内に、カバーの上方縁部がカン
の上方縁部よりわずかに下がわとなるまで、押し下げられて、それから適所で（
たとえばレーザー溶接などによって）溶接され、電池をシールする。ハウジング
の材質としては、ステンレス鋼やニッケルメッキされた冷間圧延炭素鋼（cold r
olled carbon steel；CRS）がある。[0002] A prismatic battery has a prismatic shape instead of a circular cross-sectional shape. An example of such a prismatic battery is the F6 nickel-metal hydride (NiMH) battery, which has recently been used in portable electrical equipment such as mobile phones and has a rectangular cross section. The housing of such prismatic cells typically includes a deep drawn (or longitudinally seamed) can, which is a rigid flat cover assembly with one or more electrical contacts. With a lid. The cover is typically pushed down into the prism opening end of the can until the upper edge of the cover is slightly below the upper edge of the can, and then in place (
It is welded (eg, by laser welding) to seal the battery. Housing materials include stainless steel and nickel-plated cold rolled carbon steel (cold r
olled carbon steel (CRS).

【０００３】 カンとカバーの許容差（tolerancing）は、溶接で密封を良好なものにするた めに、カバー全周まわりで密な接触ができるように、正確なものでなければなら
ない。理想的には、溶接継目沿いにすき間ができないように、部品どうしが、線
と線とでつながるように、もしくは細いしまりばめができるように、寸法決めさ
れる。ここでしめしろが大きすぎると、平板カバーの多くでは、接点／液口組立
体をつくるために平板に穿孔された一つもしくは複数の穴によって、座屈するお
それがある。また、カバーが有意な程度に曲がると、これらの穴のところのシー
ルが損なわれる（compromised）。カバーとカンとの間に大きすぎるすき間が局 所的にできると、溶接プロセスで用いる溶加材が不足するということもあって、
気密なレーザー溶接をするのが難しくなる。このような問題は、カンとカバーの
境界上（critical）の寸法にきわめて厳密な寸法許容差が必要なために生じてき
たもので、これによって組成部品のコストが上昇する。たとえば、現在のF６の なかには設計上、カンの許容差として全体で+／−０．００２インチ（０．０５ ミリメートル）というものがあるが、これを深絞りで確実に経済的に達成するの
は困難である。[0003] The tolerance between the can and the cover must be accurate so that close contact is made around the entire circumference of the cover in order to obtain a good seal by welding. Ideally, the parts are dimensioned so that there are no gaps along the weld seam, the parts are connected in a line-to-line manner, or have a tight fit. If the interference is too large, many flat plate covers can buckle due to one or more holes drilled in the flat plate to make the contact / liquid port assembly. Also, if the cover bends to a significant degree, the seals at these holes will be compromised. If too large a gap is created locally between the cover and the can, there is a shortage of filler metal used in the welding process,
It becomes difficult to perform airtight laser welding. Such problems have arisen because the critical dimensions of the can and cover are required to have very tight dimensional tolerances, which adds to the cost of the component. For example, some of the current F6 designs have a total can tolerance of +/- 0.002 inches (0.05 millimeters), but to achieve this economically with deep drawing is a certainty. Have difficulty.

【０００４】 接点／液口組立体は普通、平板カバーに穿孔された丸い穴のなかに取付けられ
て、高分子シールでカバーにシールされて、このカバーから電気的に隔離されて
いる。電池の製造中および使用に際しては、取付け穴内で接点／液口組立体を回
転させると、内部ショートをひきおこす恐れがあるので、回転させないように注
意しなければならない。The contact / liquid port assembly is typically mounted in a round hole drilled in a flat plate cover, sealed to the cover with a polymer seal, and electrically isolated from the cover. Care must be taken during battery manufacture and use to avoid rotating the contact / liquid assembly within the mounting holes, as this can cause an internal short circuit.

【０００５】 一般的なF６プリズム電池のように薄い電池では特に、シールの縁部附近が溶 接継目に近接しているので、溶接プロセス中に接点／液口組立体でのシール材を
損傷させたり変形させたりしないように、注意しなければならない。シール附近
の域内の熱を限定することにより、シールの変形を抑えることができ、シールの
漏れによる不良率を低下させることもできるが、継目での漏れによる不良率は悪
化する。[0005] Particularly in thin cells, such as the typical F6 prismatic cell, the proximity of the seal edge to the weld seam may damage the seal at the contact / liquid assembly during the welding process. Care must be taken not to deform or deform it. By limiting the heat in the area near the seal, the deformation of the seal can be suppressed, and the defective rate due to leakage of the seal can be reduced, but the defective rate due to leakage at the seam deteriorates.

【０００６】 このF６のような標準的なプリズム電池においてそれらのサイズは違っていて も、カンの開口端部の縁部との相対的な接点の高さは、特定のものに決っている
。ときどき、カバーを適所に溶接したあと、なかには、カバーと外部接点との間
にスペーサーを加えて、この寸法を制御することがある。カバーは理想的には、
可能なかぎり外がわに適所に正確に位置づけられて、内部電池のほとんどの容量
を作用物質に提供する。[0006] In standard prismatic cells such as the F6, even though their sizes are different, the height of the contact point relative to the edge of the open end of the can is fixed to a specific one. Occasionally, after welding the cover in place, a spacer may be added between the cover and the external contacts to control this dimension. The cover is ideally
Positioned as precisely as possible on the outer crocodile, it provides most of the capacity of the internal battery to the active substance.

【０００７】 本発明の提供するプリズムハウジングカバー構造は、シールプロセスのカバー
／カンの寸法許容差に対する感度を効率的に下げて、シールを損傷させることな
く溶接熱を高温にできるもので、さらにいくつかの実施態様では、カバー部分を
突出させて、内部電池容量を追加したりシール回転を防止したりできる。The prism housing cover structure provided by the present invention can efficiently reduce the sensitivity to the dimensional tolerance of the cover / can in the sealing process, and can increase the welding heat without damaging the seal. In such an embodiment, the internal battery capacity can be added or the seal can be prevented from rotating by projecting the cover portion.

【０００８】 本発明を特徴づけるプリズム電池ハウジングカバーでは、その外周まわりに外
がわフランジを備え、このフランジは実質的にカンの側面の延びる方向に延びて
いる。The prismatic battery housing cover which characterizes the present invention has an outer flange around its outer periphery, which flange extends substantially in the direction in which the sides of the can extend.

【０００９】 本発明のひとつの相によると、プリズムバッテリは、プリズムカンとハウジン
グカバーとを有する、電導性を有したハウジングを含む。このカンは、カンの両
がわに延びる側面どうしの間に開口端部を成し、ハウジングカバーは、カンの開
口端部における両がわの側面どうしの間に配置され、これら側面に対してシール
されて、このカンとカバーは合わさって容量を閉じ込めるようになっている。カ
バーはその外周まわりに外がわフランジを有し、このフランジは実質的にカンの
側面の延びる方向に延び、このフランジとカンの側面が合わさって、フランジの
遠位がわ縁部で溶接継目を成す。According to one aspect of the invention, a prismatic battery includes a conductive housing having a prism can and a housing cover. The can defines an open end between the sides of the can extending from the sides of the can, and the housing cover is disposed between the sides of the can at the open end of the can. Sealed, the can and cover fit together to confine the volume. The cover has an outer flange around its outer circumference, which extends substantially in the direction of extension of the sides of the can, the flanges and the sides of the can meet, and a weld seam is formed at the distal edge of the flange. Make

【００１０】 カバーが突出部分を有し、この突出部分が閉じ込められた容量と流体連通して
、作用物質および／または電解液のために内部電池容量を追加するようになって
いると、好ましい。[0010] Preferably, the cover has a protrusion, the protrusion being in fluid communication with the confined volume, so as to add internal battery capacity for the active substance and / or the electrolyte.

【００１１】 特定の適用にはバッテリが非常に薄くてもよい。たとえば、現在のところ好適
とされる実施態様のプリズムカンは、開口端部の両がわの側面どうしの間を、お
よそ６．０ミリメートルより小さいという最小寸法にしている。説明された実施
態様においては、この寸法は約５．０ミリメートルである。[0011] The battery may be very thin for certain applications. For example, the prism can of the presently preferred embodiment has a minimum dimension of less than about 6.0 millimeters between the sides of the open ends. In the described embodiment, this dimension is about 5.0 millimeters.

【００１２】 本発明における種々の実施態様は、以下に述べるなかのひとつもしくはそれよ
り多くの特徴を有する。カバーは型抜きされた（stamped）金属である。カバー は長方形だが角に丸みがついている。カバーフランジは外向きにテーパーがかか
って、フランジとハウジングカンの側面との間に圧力をかける。突出部は、カバ
ーを通る添加穴を有し、さらに、この添加穴内にはプラグ（たとえば金属ボール
）が配置されてこの添加穴をシールしている。Various embodiments of the invention have one or more of the features described below. The cover is stamped metal. The cover is rectangular but has rounded corners. The cover flange tapers outwardly, applying pressure between the flange and the side of the housing can. The protrusion has an addition hole passing through the cover, and a plug (for example, a metal ball) is disposed in the addition hole to seal the addition hole.

【００１３】 いくつかの態様では、カバーはそれを貫通する穴を定め、バッテリはこの穴で
カバーに固着された外部電気接点を含んでいる。この接点とカバーとの間のシー
ルによって、接点をカバーから電気的に絶縁している。いくつかの例では、突出
部がシールに係合するように構成されて、このシールがカバーを中心に回転しな
いようにしている。ある実施態様では、カバーは、このような突出部を２つ有し
、これら２つの突出部どうしの間にシールが配置され、そしてシールはこれら２
つの突出部によって回転しないように拘束されている。In some embodiments, the cover defines a hole therethrough and the battery includes external electrical contacts secured to the cover at the hole. The seal between the contact and the cover electrically insulates the contact from the cover. In some examples, the protrusion is configured to engage a seal such that the seal does not rotate about the cover. In one embodiment, the cover has two such protrusions, a seal is placed between the two protrusions, and the seal is
It is restrained from rotating by the two protrusions.

【００１４】 カンの側面の延びる方向におけるフランジの高さが、カバーの基準厚さの少な
くとも３倍あると、好ましい。It is preferable that the height of the flange in the direction in which the side surface of the can extends is at least three times the reference thickness of the cover.

【００１５】 他の相によれば、本発明は、電導性を有したプリズムバッテリハウジングを備
えるバッテリの構成方法を提供する。この方法は、（a）（上記したような適当 なフランジを備えた）ハウジングカバーを、細長のプラズマカンの開口端部内に
押し込んで、容量を閉じこめる工程；そして（b）継目を溶接してカバーをカン にシールする工程を含む。According to another aspect, the present invention provides a method of constructing a battery comprising a prismatic battery housing having electrical conductivity. The method includes the steps of (a) pushing a housing cover (with suitable flanges as described above) into the open end of the elongated plasma can to confine the volume; and (b) welding the seam to cover the cover. And sealing the to the can.

【００１６】 溶接する工程はたとえば、カンの側面の延びる方向において、レーザービーム
を継目に向けることによって、行われる。The welding step is performed, for example, by directing a laser beam to a seam in a direction in which the side surface of the can extends.

【００１７】 押し込める工程は普通、カンの側面を、カンの開口端部で、外がわに向けて弾
性的に撓ませることを含む。The indenting step typically involves elastically bending the side of the can at the open end of the can toward the outside.

【００１８】 突出部が（上記したような）添加穴を有した場合は、このバッテリ構成方法
は、溶接後に、（c）この添加穴を介して閉じ込められた容量に電解液を添加す る工程；および（d）この添加穴に栓をし、閉じ込められた容量をシールする工 程とをさらに含む。栓をする前に、添加穴を介して閉じ込められた容量に上昇し
たテスト圧をかけてもよい。If the protrusion has an addition hole (as described above), the method of battery construction may comprise, after welding, (c) adding an electrolyte to the volume confined through the addition hole. And (d) plugging the addition hole and sealing the trapped volume. Prior to plugging, an elevated test pressure may be applied to the volume trapped through the addition hole.

【００１９】 他の特徴や利点は、本発明の実施態様についての以下の説明と請求範囲から、
明らかとなろう。[0019] Other features and advantages will be apparent from the following description of embodiments of the invention and from the claims.
It will be clear.

【００２０】 図１および２に示されたように、F６プリズム電池１０の有するハウジング組 立体は、深絞りされたニッケルメッキのCRSカン１２と、カバー組立体１４とを 有する。電池内部の組成は示されていないが、標準的なF６電池の典型的なもの になっており、少なくとも２つの電極を含んでいる。カバー組立体１４は、型抜
きされたニッケルメッキのCRSカバー１６、プラスチック液口シール１８、金属 リベット２０、ワッシャー２２、液口栓２４、および金属接点（ピップ）２６を
含む。組立て中に、カバー１６は、カン１２の開口端部２８内に押し込められ、
さらにカバーは、その外周の全長まわりを継目３０に沿って溶接され、カバーを
カンにシールする。熱収縮性材質でできた外部絶縁体３２が、組立て後にハウジ
ングを覆うように配置される。As shown in FIGS. 1 and 2, the housing assembly of the F6 prism battery 10 includes a deep drawn nickel plated CRS can 12 and a cover assembly 14. The composition inside the cell is not shown, but is typical of a standard F6 cell and includes at least two electrodes. The cover assembly 14 includes a stamped nickel plated CRS cover 16, a plastic spout seal 18, a metal rivet 20, a washer 22, a spout 24, and a metal contact (pip) 26. During assembly, the cover 16 is pushed into the open end 28 of the can 12,
Further, the cover is welded along the seam 30 around the entire length of its outer periphery, sealing the cover to the can. An external insulator 32 made of a heat-shrinkable material is arranged to cover the housing after assembly.

【００２１】 図３および４に示されたように、カバー１６はおよそ０．３３ミリメートルの
基準厚さtcを有し、またカバーは１．６２ミリメートルの全体高さHCとなるよう
に型抜きされて、カバーの側面のうち幅が広いほうの一方に向かって延びる外周
リップ３４を有することになる。リップ３４はおよそ１．３ミリメートルのリッ
プ高さHLを有する。さらにカバーには、２つの突出部３６が、カバーの中央に貫
通して穿孔された穴３８の両がわにひとつずつ型抜きされている。穴３８は、リ
ップや突出部を形成する前のカバー生地板を、その外がわから貫通して穿孔され
たものでもよい。穴をカバーの外がわから穿孔することによって、カバーの内が
わにリッジ４０が形成されて、外がわ表面４１はシールできるように平らなまま
である。この穿孔作用によってさらに、カバーの外がわで穴の縁部に丸みをつけ
て、シール１８を挿入しやすくしている。リベット２０はこのシールを通って挿
入され、ワッシャ２２は適所に設置され、そしてリベットの小さいほうの内がわ
フランジが形成されて、リベットとシールとワッシャを適所に保持する。液口栓
２４とピップ２６とが適所に設置され、ピップはリベットの大きいほうの外がわ
フランジにスポット溶接される。組立てられたとき、カバーが電池の陽極と電気
的に連通し、ピップが電池の陰極と電気的に連通して、シール１８とワッシャ２
２が、リベットとピップとをカバーから電気的に絶縁する。リップ３４にはおよ
そ２．５度の角度θで外向きにテーパーがかかって、図６に関して後述するよう
に、ハウジングカンの内がわ表面と、確実な係合ができる。As shown in FIGS. 3 and 4, the cover 16 has a reference thickness t c of approximately 0.33 millimeters, and the cover is shaped to have an overall height H C of 1.62 millimeters. It will have an outer peripheral lip 34 which is removed and extends towards one of the wider sides of the cover. Lip 34 has a lip height H L of approximately 1.3 millimeters. Further, the cover is provided with two protrusions 36, each of which has a hole 38 penetrated through the center of the cover and is allotted one by one. The hole 38 may be formed by penetrating the cover material plate before forming the lip or the protrusion from the outside. By drilling the holes from the outside of the cover, a ridge 40 is formed in the inside of the cover, and the outside surface 41 remains flat for sealing. This piercing action further rounds the edges of the hole with the outer edges of the cover to facilitate insertion of the seal 18. The rivet 20 is inserted through this seal, the washer 22 is in place, and the smaller inner flange of the rivet is formed to hold the rivet, seal and washer in place. The liquid stopper 24 and the pip 26 are placed in place, and the pip is spot welded to the larger outer flange of the rivet. When assembled, the cover is in electrical communication with the battery anode, the pips are in electrical communication with the battery cathode, and seal 18 and washer 2 are in place.
2 electrically insulates the rivet and pip from the cover. The lip 34 tapers outwardly at an angle θ of approximately 2.5 degrees to provide a secure engagement with the lining surface of the housing can, as described below with respect to FIG.

【００２２】 図５に示されたように、突出部３６の液口組立体の取付穴３８に面したがわの
側面４２はアーチ型になって、およそ２．２ミリメートルのアールRを有する。 これらの曲面を有する側面４２によって、シールとピップをカバーに組み付けた
後は、図８に示されたように、楕円形の液口組立体（リベット２０とそれに接す
るすべてのもの）が穴３８のなかで回転できないようにされている。シールと液
口の回転を防止するだけでなく、突出部３６はカバーの内がわにキャビティ４４
（図４）を形成し、これによって内部電池容量が追加できる。突出部３６とリッ
プ３４はまたカバーの曲げ剛性を高めて、これにより全体寸法がそれぞれ５．０
ミリメートルのWCと１５．８ミリメートルのLCに仕上がり、これはカンの開口端
部における両がわの側面どうしの間における対応寸法よりわずかに大きくなって
いる。カバー１６の４つの角はおよそ０．７５ミリメートルの外向きアールrを 有し、これはカンの開口部の角における内がわの同様のアールと合致する。As shown in FIG. 5, the side surface 42 of the protrusion facing the mounting hole 38 of the liquid port assembly of the protrusion 36 is arched and has a radius R of approximately 2.2 millimeters. After these seals and pips have been assembled to the cover by these curved sides 42, the elliptical spout assembly (rivet 20 and all that abuts it) has holes 38 as shown in FIG. It cannot be rotated inside. In addition to preventing the rotation of the seal and the liquid port, the protrusion 36 is provided with a cavity 44 inside the cover.
(FIG. 4) to provide additional internal battery capacity. The protrusion 36 and the lip 34 also increase the bending stiffness of the cover, so that the overall dimensions are each 5.0.
Finished in millimeters of W C and 15.8 millimeters of L C , which is slightly larger than the corresponding dimension between the sides of the canes at the open end of the can. The four corners of the cover 16 have an outward radius r of approximately 0.75 millimeter, which is consistent with a similar radius of the inner wall at the corner of the can opening.

【００２３】 図６を参照すると、カバーがカン１２の開口端部内に押し込まれて、カバー１
６の外向きにテーパーのかかったリップ３４は弾性的に内向きに撓み、いっぽう
カンの側面は外向きに撓む。これらの弾性的な撓みにより、カンとカバーとの間
の接触負荷が加わり、それらの寸法許容差が比較的大きくても、継目３０で確実
に緊密なはめあいができる。たとえばカン１２は、０．２５度の側面抜け勾配（
side draft angle）、開口許容差がそれぞれの寸法において＋／−０．００４イ
ンチ（０．１ミリメートル）で絞ることができ、いっぽうでプレスばめは確実に
維持される。正しく押し込まれれば、カバーはカン１２の内がわ表面と、およそ
０．６ミリメートルの長さXc（このとき２つの接合する壁のうち重い方の壁の厚
さのおよそ３倍であると好ましい）に沿って接触する。図示されたように、リッ
プ３４の縁部とカン１２の縁部とがツライチになるまで、カバーをカンに押し込
んだあと、カバーとカンとは、矢印Aの方向で継目３０に向けたレーザーによっ て、合わせて溶接され、鎖線Bで示された溶融域ができ、継目がシールされる。 このレーザービームは継目３０の長さに沿って移動し（電池またはレーザーのい
ずれかが物理的に移動すればよい）、溶接を完了する。Referring to FIG. 6, the cover is pushed into the open end of the can 12 and the cover 1
The outwardly tapered lip 34 of FIG. 6 elastically flexes inward, while the side of the can flexes outward. These resilient flexures apply a contact load between the can and the cover, ensuring a tight fit at seam 30, even though their dimensional tolerances are relatively large. For example, the can 12 has a 0.25 degree side draft (
The side draft angle) and the aperture tolerance can be squeezed by +/- 0.004 inches (0.1 mm) in each dimension, while the press fit is reliably maintained. When properly pushed in, the cover will have an inner surface of the can 12 and a length X c of approximately 0.6 millimeters (where approximately three times the thickness of the heavier of the two joining walls. (Preferably). As shown, the cover is pushed into the can until the edge of the lip 34 and the edge of the can 12 are pliable, and the cover and the can are then directed to the laser toward seam 30 in the direction of arrow A. Thus, they are welded together to form a fusion zone indicated by a dashed line B, and the seam is sealed. The laser beam travels along the length of the seam 30 (either the battery or the laser needs to be physically moved) to complete the welding.

【００２４】 図７に示されたように、第２の実施態様のカバー組立体１４'では、カバー１ ６'の突出部３６のうち一方に添加穴４６があり、それは栓されている。この添 加穴を使って圧テストをし（to pressure test）、カバー組立体１４'をカンに 溶接したあと電池に電解液を添加し、続いて、ステンレス鋼ボール４８（たとえ
ばおよそ１．６ミリメートルの直径）で添加穴に栓をして、レーザー溶接もしく
はTIG溶接によってこのボールを適所に溶接した。As shown in FIG. 7, in the cover assembly 14 ′ of the second embodiment, one of the protrusions 36 of the cover 16 ′ has an addition hole 46 which is plugged. A pressure test is performed using this addition hole, and the electrolyte is added to the battery after the cover assembly 14 'is welded to the can, followed by a stainless steel ball 48 (eg, approximately 1.6 millimeters). The ball was welded in place by laser welding or TIG welding.

【図面の簡単な説明】[Brief description of the drawings]

【図１】 プラズマ電池ハウジングの直交断面図、縦断面図である。FIG. 1 is an orthogonal sectional view and a longitudinal sectional view of a plasma battery housing.

【図２】 プラズマ電池ハウジングの直交断面図、縦断面図である。FIG. 2 is an orthogonal sectional view and a longitudinal sectional view of a plasma battery housing.

【図３】 図２のカバー組立体の拡大図である。FIG. 3 is an enlarged view of the cover assembly of FIG. 2;

【図４】 図５の４−４に沿うカバーの断面図である。FIG. 4 is a sectional view of the cover taken along line 4-4 in FIG. 5;

【図５】 カバーの平面図である。FIG. 5 is a plan view of a cover.

【図６】 図２における、絶縁体３２を除いた領域６の拡大図である。FIG. 6 is an enlarged view of a region 6 excluding an insulator 32 in FIG.

【図７】 第２の実施態様を示したもので、添加穴がカバーの突出部を介して、栓をされ
ている。FIG. 7 shows a second embodiment, wherein the addition hole is plugged via a protrusion on the cover.

【図８】 図３における断面図に示されたカバー組立体の平面図である。8 is a plan view of the cover assembly shown in the cross-sectional view of FIG.

───────────────────────────────────────────────────── フロントページの続き (81)指定国 ＥＰ(ＡＴ，ＢＥ，ＣＨ，ＣＹ， ＤＥ，ＤＫ，ＥＳ，ＦＩ，ＦＲ，ＧＢ，ＧＲ，ＩＥ，Ｉ Ｔ，ＬＵ，ＭＣ，ＮＬ，ＰＴ，ＳＥ)，ＯＡ(ＢＦ，ＢＪ ，ＣＦ，ＣＧ，ＣＩ，ＣＭ，ＧＡ，ＧＮ，ＧＷ，ＭＬ， ＭＲ，ＮＥ，ＳＮ，ＴＤ，ＴＧ)，ＡＰ(ＧＨ，ＧＭ，Ｋ Ｅ，ＬＳ，ＭＷ，ＳＤ，ＳＬ，ＳＺ，ＵＧ，ＺＷ)，Ｅ Ａ(ＡＭ，ＡＺ，ＢＹ，ＫＧ，ＫＺ，ＭＤ，ＲＵ，ＴＪ ，ＴＭ)，ＡＬ，ＡＭ，ＡＴ，ＡＵ，ＡＺ，ＢＡ，ＢＢ ，ＢＧ，ＢＲ，ＢＹ，ＣＡ，ＣＨ，ＣＮ，ＣＵ，ＣＺ， ＤＥ，ＤＫ，ＥＥ，ＥＳ，ＦＩ，ＧＢ，ＧＤ，ＧＥ，Ｇ Ｈ，ＧＭ，ＨＲ，ＨＵ，ＩＤ，ＩＬ，ＩＮ，ＩＳ，ＪＰ ，ＫＥ，ＫＧ，ＫＰ，ＫＲ，ＫＺ，ＬＣ，ＬＫ，ＬＲ， ＬＳ，ＬＴ，ＬＵ，ＬＶ，ＭＤ，ＭＧ，ＭＫ，ＭＮ，Ｍ Ｗ，ＭＸ，ＮＯ，ＮＺ，ＰＬ，ＰＴ，ＲＯ，ＲＵ，ＳＤ ，ＳＥ，ＳＧ，ＳＩ，ＳＫ，ＳＬ，ＴＪ，ＴＭ，ＴＲ， ＴＴ，ＵＡ，ＵＧ，ＵＺ，ＶＮ，ＹＵ，ＺＷ (72)発明者 ジョン、ディー．シレスキー アメリカ合衆国マサチューセッツ州、フラ ンクリン、ホーソーン、ビレッジ、25エイ (72)発明者 リチャード、エム．マンク アメリカ合衆国マサチューセッツ州、ウェ イマウス、モーニングサイド、パス、88 Ｆターム(参考） 5H011 AA09 CC06 DD03 DD06 DD13 KK01 ──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SL, SZ, UG, ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY , CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP , KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW (72) Inventor John, De. Silesky, Franklin, Massachusetts, USA, Hawthorne, Village, 25 A. (72) Inventor Richard, M. Mank Massachusetts, USA, Waymouth, Morningside, Pass, 88 F-term (reference) 5H011 AA09 CC06 DD03 DD06 DD13 KK01

Claims (17)

【特許請求の範囲】[Claims] 【請求項１】 電導性を有したハウジングを備えたプリズムバッテリにおいて プリズムカンを含み、このカンがその両がわに延びる側面どうしの間
に開口端部を成し；さらに カンの開口端部で両がわの側面どうしの間に配され、これら側面に対
してシールされる、ハウジングカバーを含み、前記カンとカバーとが合わさって
容量を閉じこめ、カバーがその外周まわりに外がわフランジを有し、このフラン
ジが、実質的にカンの側面の延びる方向に延び、カンと共に溶接された継目を成
すことを特徴とする、前記バッテリ。1. A prismatic battery having an electrically conductive housing, comprising a prism can, wherein the can forms an open end between its laterally extending sides; A housing cover disposed between the sides of the wales and sealed against the sides, the can and the cover mating to confine the volume, the cover having an outer flange about its outer periphery; Wherein the flange extends substantially in the direction of extension of the sides of the can and forms a welded seam with the can. 【請求項２】 カバーが突出部を有し、突出部が、その内部に閉じこめられた容量と流体連通
するポケットを成す、請求項１記載のプリズムバッテリ。2. The prism battery of claim 1, wherein the cover has a protrusion, the protrusion forming a pocket in fluid communication with a volume enclosed therein. 【請求項３】 プリズムカンが、その開口端部で両がわの側面どうしの間に、実質的に６．０
ミリメートルより小さい最小寸法を有する、請求項１記載のプリズムバッテリ。3. The prism can is substantially 6.0 at the open end thereof between the sides of the bridge.
2. The prismatic battery of claim 1, wherein the prismatic battery has a minimum dimension of less than millimeters. 【請求項４】 カバーが型抜きされた金属である、請求項１記載のプリズムバッテリ。4. The prism battery of claim 1, wherein the cover is a stamped metal. 【請求項５】 カバーが角に丸みをつけた長方形である、請求項１記載のプリズムバッテリ。5. The prismatic battery according to claim 1, wherein the cover is a rectangle with rounded corners. 【請求項６】 プリズムバッテリのカバーがそれを貫通する穴を画成し、前記バッテリが、 カバーに穴のところで固着された外部電気接点；そして 接点とカバーとの間に配されたシールとを有し、これによって接点を
カバーから電気的に絶縁した、請求項２記載のプリズムバッテリ。6. A prismatic battery cover defining a hole therethrough, said battery comprising an external electrical contact secured to the cover at the hole; and a seal disposed between the contact and the cover. 3. The prismatic battery according to claim 2, comprising a contact, which electrically insulates the contact from the cover. 【請求項７】 突出部がシールを係合するように構成され、カバーに対してシールが回転しな
いようになっている、請求項６記載のプリズムバッテリ。7. The prism battery of claim 6, wherein the protrusion is configured to engage the seal, such that the seal does not rotate relative to the cover. 【請求項８】 前記突出部を２つ含み、シールがこの２つの突出部どうしの間に配され回転し
ないように拘束されている、請求項７記載のプリズムバッテリ。8. The prism battery of claim 7, including two of said protrusions, wherein a seal is disposed between said two protrusions and restrained from rotating. 【請求項９】 カバーフランジに外向きにテーパーがかかって、フランジとハウジングカンの
側面との間に圧をかける、請求項１記載のプリズムバッテリ。9. The prism battery of claim 1, wherein the cover flange is tapered outwardly to apply pressure between the flange and the side of the housing can. 【請求項１０】 突出部がそれを貫通する充填穴を定め、バッテリがさらに、この充填穴内部に
配されて充填穴をシールする栓を含む、請求項２記載のプリズムバッテリ。10. The prism battery of claim 2, wherein the protrusion defines a fill hole therethrough, and the battery further includes a plug disposed within the fill hole to seal the fill hole. 【請求項１１】 栓が金属ボールを含む、請求項１０記載のプリズムバッテリ。11. The prism battery of claim 10, wherein the plug comprises a metal ball. 【請求項１２】 フランジのカン側面の延びる方向における高さが、カバーの基準厚さの少なく
とも３倍である、請求項１記載のプリズムバッテリ。12. The prism battery according to claim 1, wherein a height of the flange in a direction in which a side surface of the can extends is at least three times a reference thickness of the cover. 【請求項１３】 電導性を有したプリズムバッテリハウジングを備えたバッテリの製造方法にお
いて ハウジングカバーを細長いプリズムカンの開口端部内に押し込めて容
量を閉じこめ、この開口端部がカンの両がわに延びる側面どうしの間に定められ
、このカバーがその外周まわりに外がわフランジを有し、このフランジが、実質
的に、カンの側面の延びる方向に延び、その側面と共に継目を定め、カバーが突
出部を有し、この突出部が、その内部に閉じ込められた容量と流体連通するポケ
ットを成し；さらに この継目を溶接してカバーをカンにシールすることを特徴とする、前
記バッテリの構成方法。13. A method of manufacturing a battery having a prismatic battery housing having electrical conductivity, wherein a housing cover is pushed into an open end of an elongated prism can to confine the capacity, and the open end extends both sides of the can. Defined between the sides, the cover having an outer flange about its outer periphery, the flange extending substantially in the direction of extension of the sides of the can, defining a seam with the sides, and the cover protruding. And a protrusion that forms a pocket in fluid communication with the volume contained therein; and welding the seam to seal the cover to the can. . 【請求項１４】 溶接工程が、カンの側面が延びる方向で、レーザービームを継目に向けること
を含む、請求項１３記載の方法。14. The method of claim 13, wherein the welding step includes directing the laser beam at the seam in a direction in which the sides of the can extend. 【請求項１５】 押し込める工程が、カンの側面をカンの開口端部のところで外向きに弾性的に
撓ませることを含む、請求項１３記載の方法。15. The method of claim 13, wherein the step of compressing comprises resiliently flexing the side of the can outwardly at the open end of the can. 【請求項１６】 突出部がそれを貫通する添加穴を定め、溶接後に、 この添加穴を介して閉じ込められた容量に電解液を添加し、そして この添加穴に栓をして、閉じ込められた容量をシールすることをさら
に含む、請求項１３記載の方法。16. The projection defines an addition hole therethrough, after welding, electrolyte is added to the volume trapped through the addition hole, and the addition hole is plugged to contain the electrolyte. 14. The method of claim 13, further comprising sealing the volume. 【請求項１７】 栓をする前に、添加穴を介して閉じ込められた容量部に上昇したテスト圧をか
けることをさらに含む、請求項１６記載の方法。17. The method of claim 16, further comprising applying an elevated test pressure to the volume confined through the addition hole prior to plugging.
JP2000536110A 1998-03-11 1999-03-04 Prism battery housing Pending JP2002507047A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/038,326 1998-03-11
US09/038,326 US6001504A (en) 1998-03-11 1998-03-11 Prismatic battery housing
PCT/US1999/004781 WO1999046825A1 (en) 1998-03-11 1999-03-04 Prismatic battery housing

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Publication Number Publication Date
JP2002507047A true JP2002507047A (en) 2002-03-05

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ID=21899309

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EP (1) EP1062704B1 (en)
JP (1) JP2002507047A (en)
KR (1) KR20010041724A (en)
CN (1) CN1292935A (en)
AT (1) ATE405955T1 (en)
AU (1) AU2983399A (en)
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TW416162B (en) 2000-12-21
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